<template>
  <div class="upload-container">
    <el-upload
      :data="dataObj"
      :multiple="false"
      :show-file-list="true"
      :on-success="handleImageSuccess"
      class="image-uploader"
      drag
      :limit="9"
      :file-list="fileList"
      :before-upload="beforeUpload"
      action="http://example-chongqing.oss-cn-beijing.aliyuncs.com"
    >
      <i class="el-icon-upload" />
      <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
    </el-upload>
    <div
      class="image-preview image-app-preview"
      v-for="(item, index) in imageUrl"
      :key="index"
    >
      <div v-show="item.length > 1" class="image-preview-wrapper">
        <img :src="item" />
        <div class="image-preview-action">
          <i class="el-icon-delete" @click="rmImage(index)" />
        </div>
      </div>
    </div>
    <!-- <div class="image-preview">
      <div v-show="imageUrl.length > 1" class="image-preview-wrapper">
        <img :src="imageUrl" />
        <div class="image-preview-action">
          <i class="el-icon-delete" @click="rmImage" />
        </div>
      </div>
    </div> -->
    
  </div>

</template>

<script>
import { getSignature } from "@/api/qiniu";

export default {
  name: "SingleImageUpload3",
  props: {
    value: {
      type: String,
      default: "",
    },
  },
  data() {
    return {
      tempUrl: "",
      fileList: [],
      imgUrl: "",
      dataObj: {
        policy: "",
        signature: "",
        key: "",
        ossaccessKeyId: "",
        dir: "",
        host: "",
      },
    };
  },
  computed: {
    imageUrl() {
      let data = this.value.split("#");
      let coverList = [];
      for (let i of data) {
        if (i) {
          coverList.push(i);
        }
      }
      return coverList;
    },
  },
  created() {
    this;
  },
  methods: {
    rmImage(index) {
      this.imageUrl.splice(index, 1);
      console.log(this.imageUrl);
    },
    emitInput(val) {
      this.$emit("input", val);
    },
    handleImageSuccess(res, file) {
      let self = this;
      console.log(res, file);
      console.log(this.fileList);
      self.imgUrl = self.dataObj.host + "/" + self.dataObj.key;
      self.imgUrl += self.imgUrl + "#";
      self.emitInput(self.imgUrl);
      // console.log(this.imgUrl);
      self.$message.success("上传成功！");
    },
    beforeUpload(file) {
      const self = this;
      console.log(file);
      return new Promise((resolve, reject) => {
        console.log(1);
        getSignature({ road: "one" })
          .then((res) => {
            console.log(res);
            self.dataObj.policy = res.result.policy;
            self.dataObj.signature = res.result.signature;
            self.dataObj.ossaccessKeyId = res.result.accessid;
            self.dataObj.dir = res.result.dir;
            self.dataObj.host = res.result.host;
            self.dataObj.key = res.result.dir + file.name;
            resolve(true);
          })
          .catch((err) => {
            console.log(err);
            reject(false);
          });
      });
    },
  },
};
</script>

<style lang="scss" scoped>
@import "~@/styles/mixin.scss";
.upload-container {
  width: 100%;
  position: relative;
  @include clearfix;
  .image-uploader {
    width: 35%;
    float: left;
  }
  .image-preview {
    width: 200px;
    height: 200px;
    position: relative;
    border: 1px dashed #d9d9d9;
    float: left;
    margin-left: 50px;
    .image-preview-wrapper {
      position: relative;
      width: 100%;
      height: 100%;
      img {
        width: 100%;
        height: 100%;
      }
    }
    .image-preview-action {
      position: absolute;
      width: 100%;
      height: 100%;
      left: 0;
      top: 0;
      cursor: default;
      text-align: center;
      color: #fff;
      opacity: 0;
      font-size: 20px;
      background-color: rgba(0, 0, 0, 0.5);
      transition: opacity 0.3s;
      cursor: pointer;
      text-align: center;
      line-height: 200px;
      .el-icon-delete {
        font-size: 36px;
      }
    }
    &:hover {
      .image-preview-action {
        opacity: 1;
      }
    }
  }
  .image-app-preview {
    width: 320px;
    height: 180px;
    position: relative;
    border: 1px dashed #d9d9d9;
    float: left;
    margin-left: 50px;
    .app-fake-conver {
      height: 44px;
      position: absolute;
      width: 100%; // background: rgba(0, 0, 0, .1);
      text-align: center;
      line-height: 64px;
      color: #fff;
    }
  }
}
</style>
